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JDR Vol.5 No.4 pp. 407-416
(2010)
doi: 10.20965/jdr.2010.p0407

Paper:

Vector-Valued Fragility Analysis Using PGA and PGV Simultaneously as Ground-Motion Intensity Measures

Sei’ichiro Fukushima

Disaster Reduction Engineering Group, Tokyo Electric Power Services Co., Ltd., 3-3-3 Higashi-Ueno, Taito, Tokyo 110-0015, Japan

Received:
March 15, 2010
Accepted:
May 7, 2010
Published:
August 1, 2010
Keywords:
risk analysis, fragility, ground-motion measure, PGA, PGV
Abstract

Seismic risk analysis usually expresses ground-motion intensity using a single index such as peak ground acceleration (PGA), spectral acceleration for a specified period, or peak ground velocity (PGV). Limiting the number of indices, however, adds greater uncertainty when estimating annual failure probability given by convolving seismic hazard and fragility curves. This is because information other than ground-motion intensity is missing. Author proposed seismic hazard analysis using PGA and PGV simultaneously as groundmotion input measures. After analyzing the correlation coefficient between PGA and PGV using K-NET and KiK-net databases, probabilistic seismic hazard for seven sites in Kanto district in Japan was evaluated. In this study, seismic fragility analysis using PGA and PGV is conducted followed by advantage of vector-valued fragility analysis.

Cite this article as:
Sei’ichiro Fukushima, “Vector-Valued Fragility Analysis Using PGA and PGV Simultaneously as Ground-Motion Intensity Measures,” J. Disaster Res., Vol.5, No.4, pp. 407-416, 2010.
Data files:
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Last updated on Jul. 20, 2021